Add `*_RIGHT` configuration for PMW33XX driver (#19243)

4 files changed, 33 insertions, 14 deletions

diff --git a/docs/feature_pointing_device.md b/docs/feature_pointing_device.md
index be984dd5a5..ecb7ee42cb 100644
--- a/docs/feature_pointing_device.md
+++ b/docs/feature_pointing_device.md
@@ -22,11 +22,11 @@ POINTING_DEVICE_DRIVER = adns5050
 
 The ADNS 5050 sensor uses a serial type protocol for communication, and requires an additional light source. 
 
-| Setting             | Description                                                         | Default                    |
-| ------------------- | ------------------------------------------------------------------- | -------------------------- |
-| `ADNS5050_SCLK_PIN` | (Required) The pin connected to the clock pin of the sensor.        | `POINTING_DEVICE_SCLK_PIN` |
-| `ADNS5050_SDIO_PIN` | (Required) The pin connected to the data pin of the sensor.         | `POINTING_DEVICE_SDIO_PIN` |
-| `ADNS5050_CS_PIN`   | (Required) The pin connected to the cable select pin of the sensor. | `POINTING_DEVICE_CS_PIN`   |
+| Setting             | Description                                                        | Default                    |
+| ------------------- | ------------------------------------------------------------------ | -------------------------- |
+| `ADNS5050_SCLK_PIN` | (Required) The pin connected to the clock pin of the sensor.       | `POINTING_DEVICE_SCLK_PIN` |
+| `ADNS5050_SDIO_PIN` | (Required) The pin connected to the data pin of the sensor.        | `POINTING_DEVICE_SDIO_PIN` |
+| `ADNS5050_CS_PIN`   | (Required) The pin connected to the Chip Select pin of the sensor. | `POINTING_DEVICE_CS_PIN`   |
 
 
 
@@ -48,7 +48,7 @@ The ADNS 9800 is an SPI driven optical sensor, that uses laser output for surfac
 | `ADNS9800_SPI_LSBFIRST` | (Optional) Sets the Least/Most Significant Byte First setting for SPI. | `false`                  |
 | `ADNS9800_SPI_MODE`     | (Optional) Sets the SPI Mode for the sensor.                           | `3`                      |
 | `ADNS9800_SPI_DIVISOR`  | (Optional) Sets the SPI Divisor used for SPI communication.            | _varies_                 |
-| `ADNS9800_CS_PIN`       | (Required) Sets the Cable Select pin connected to the sensor.          | `POINTING_DEVICE_CS_PIN` |
+| `ADNS9800_CS_PIN`       | (Required) Sets the Chip Select pin connected to the sensor.           | `POINTING_DEVICE_CS_PIN` |
 
 
 The CPI range is 800-8200, in increments of 200. Defaults to 1800 CPI. 
@@ -124,7 +124,7 @@ Default attenuation is set to 4X, although if you are using a thicker overlay (s
 | `CIRQUE_PINNACLE_SPI_LSBFIRST` | (Optional) Sets the Least/Most Significant Byte First setting for SPI. | `false`                  |
 | `CIRQUE_PINNACLE_SPI_MODE`     | (Optional) Sets the SPI Mode for the sensor.                           | `1`                      |
 | `CIRQUE_PINNACLE_SPI_DIVISOR`  | (Optional) Sets the SPI Divisor used for SPI communication.            | _varies_                 |
-| `CIRQUE_PINNACLE_SPI_CS_PIN`   | (Required) Sets the Cable Select pin connected to the sensor.          | `POINTING_DEVICE_CS_PIN` |
+| `CIRQUE_PINNACLE_SPI_CS_PIN`   | (Required) Sets the Chip Select pin connected to the sensor.           | `POINTING_DEVICE_CS_PIN` |
 
 Default Scaling is 1024. Actual CPI depends on trackpad diameter.
 
@@ -218,11 +218,14 @@ POINTING_DEVICE_DRIVER = pmw3389
 The CPI range is 50-16000, in increments of 50. Defaults to 2000 CPI.
 
 Both PMW 3360 and PMW 3389 are SPI driven optical sensors, that use a built in IR LED for surface tracking.
+If you have different CS wiring on each half you can use `PMW33XX_CS_PIN_RIGHT` or `PMW33XX_CS_PINS_RIGHT` in combination with `PMW33XX_CS_PIN` or `PMW33XX_CS_PINS` to configure both sides independently. If `_RIGHT` values aren't provided, they default to be the same as the left ones.
 
 | Setting                      | Description                                                                                 | Default                  |
 | ---------------------------- | ------------------------------------------------------------------------------------------- | ------------------------ |
-| `PMW33XX_CS_PIN`             | (Required) Sets the Cable Select pin connected to the sensor.                               | `POINTING_DEVICE_CS_PIN` |
-| `PMW33XX_CS_PINS`            | (Alternative) Sets the Cable Select pins connected to multiple sensors.                     | _not defined_            |
+| `PMW33XX_CS_PIN`             | (Required) Sets the Chip Select pin connected to the sensor.                                | `POINTING_DEVICE_CS_PIN` |
+| `PMW33XX_CS_PINS`            | (Alternative) Sets the Chip Select pins connected to multiple sensors.                      | `{PMW33XX_CS_PIN}`       |
+| `PMW33XX_CS_PIN_RIGHT`       | (Optional) Sets the Chip Select pin connected to the sensor on the right half.              | `PMW33XX_CS_PIN`         |
+| `PMW33XX_CS_PINS_RIGHT`      | (Optional) Sets the Chip Select pins connected to multiple sensors on the right half.       | `{PMW33XX_CS_PIN_RIGHT}` |
 | `PMW33XX_CPI`                | (Optional) Sets counts per inch sensitivity of the sensor.                                  | _varies_                 |
 | `PMW33XX_CLOCK_SPEED`        | (Optional) Sets the clock speed that the sensor runs at.                                    | `2000000`                |
 | `PMW33XX_SPI_DIVISOR`        | (Optional) Sets the SPI Divisor used for SPI communication.                                 | _varies_                 |
diff --git a/drivers/sensors/pmw3360.c b/drivers/sensors/pmw3360.c
index 2c6d91d588..81dca002e2 100644
--- a/drivers/sensors/pmw3360.c
+++ b/drivers/sensors/pmw3360.c
@@ -9,8 +9,6 @@
 #include "pmw33xx_common.h"
 #include "progmem.h"
 
-extern const size_t pmw33xx_number_of_sensors;
-
 uint16_t pmw33xx_get_cpi(uint8_t sensor) {
     if (sensor >= pmw33xx_number_of_sensors) {
         return 0;
diff --git a/drivers/sensors/pmw33xx_common.c b/drivers/sensors/pmw33xx_common.c
index b8d4e532ca..82a7ec3297 100644
--- a/drivers/sensors/pmw33xx_common.c
+++ b/drivers/sensors/pmw33xx_common.c
@@ -1,3 +1,4 @@
+// Copyright 2022 Pablo Martinez (@elpekenin)
 // Copyright 2022 Daniel Kao (dkao)
 // Copyright 2022 Stefan Kerkmann (KarlK90)
 // Copyright 2022 Ulrich Spörlein (@uqs)
@@ -17,10 +18,11 @@
 extern const uint8_t pmw33xx_firmware_data[PMW33XX_FIRMWARE_LENGTH] PROGMEM;
 extern const uint8_t pmw33xx_firmware_signature[3] PROGMEM;
 
-static const pin_t cs_pins[]                     = PMW33XX_CS_PINS;
-static bool        in_burst[ARRAY_SIZE(cs_pins)] = {0};
+static const pin_t cs_pins_left[]  = PMW33XX_CS_PINS;
+static const pin_t cs_pins_right[] = PMW33XX_CS_PINS_RIGHT;
 
-const size_t pmw33xx_number_of_sensors = ARRAY_SIZE(cs_pins);
+static bool in_burst_left[ARRAY_SIZE(cs_pins_left)]   = {0};
+static bool in_burst_right[ARRAY_SIZE(cs_pins_right)] = {0};
 
 bool __attribute__((cold)) pmw33xx_upload_firmware(uint8_t sensor);
 bool __attribute__((cold)) pmw33xx_check_signature(uint8_t sensor);
diff --git a/drivers/sensors/pmw33xx_common.h b/drivers/sensors/pmw33xx_common.h
index c725e80f24..88523b8420 100644
--- a/drivers/sensors/pmw33xx_common.h
+++ b/drivers/sensors/pmw33xx_common.h
@@ -1,3 +1,4 @@
+// Copyright 2022 Pablo Martinez (@elpekenin)
 // Copyright 2022 Daniel Kao (dkao)
 // Copyright 2022 Stefan Kerkmann (KarlK90)
 // Copyright 2022 Ulrich Spörlein (@uqs)
@@ -9,6 +10,7 @@
 
 #pragma once
 
+#include "quantum.h" //to get is_keyboard_left
 #include <stdint.h>
 #include "spi_master.h"
 #include "util.h"
@@ -79,6 +81,20 @@ _Static_assert(sizeof((pmw33xx_report_t){0}.motion) == 1, "pmw33xx_report_t.moti
 #    endif
 #endif
 
+// Support single spelling and default to be the same as left side
+#if !defined(PMW33XX_CS_PINS_RIGHT)
+#    if !defined(PMW33XX_CS_PIN_RIGHT)
+#        define PMW33XX_CS_PIN_RIGHT PMW33XX_CS_PIN
+#    endif
+#    define PMW33XX_CS_PINS_RIGHT \
+        { PMW33XX_CS_PIN_RIGHT }
+#endif
+
+// Defines so the old variable names are swapped by the appropiate value on each half
+#define cs_pins (is_keyboard_left() ? cs_pins_left : cs_pins_right)
+#define in_burst (is_keyboard_left() ? in_burst_left : in_burst_right)
+#define pmw33xx_number_of_sensors (is_keyboard_left() ? ARRAY_SIZE((pin_t[])PMW33XX_CS_PINS) : ARRAY_SIZE((pin_t[])PMW33XX_CS_PINS_RIGHT))
+
 #if PMW33XX_CPI > PMW33XX_CPI_MAX || PMW33XX_CPI < PMW33XX_CPI_MIN || (PMW33XX_CPI % PMW33XX_CPI_STEP) != 0U
 #    pragma message "PMW33XX_CPI has to be in the range of " STR(PMW33XX_CPI_MAX) "-" STR(PMW33XX_CPI_MIN) " in increments of " STR(PMW33XX_CPI_STEP) ". But it is " STR(PMW33XX_CPI) "."
 #    error Use correct PMW33XX_CPI value.